Chapter 14, Problem 164CWP

Consider a 0.60-M solution of HC₃H₅O₃, lactic acid (K_a = 1.4 × 10⁻⁴).

a. Which of the following are major species in the solution?

i. HC₃H₅O₃

ii. C₃H₅O₃⁻

iii. H⁺

iv. H₂O

v. OH⁻

b. Complete the following ICE table in terms of x, the amount (mol/L) of lactic acid that dissociates to reach equilibrium.

c. What is the equilibrium concentration for C₃H₃O₃⁻?

d. Calculate the pH of the solution.